TOPIC:

  require_once('administrator/components/com_breezingforms/libraries/recaptcha/recaptchalib.php');
  $privatekey = "your private key";
  $resp = recaptcha_check_answer ($privatekey,
                                $_SERVER["REMOTE_ADDR"],
                                $_POST["recaptcha_challenge_field"],
                                $_POST["recaptcha_response_field"]);

  if (!$resp->is_valid) {
    // What happens when the CAPTCHA was entered incorrectly
  die ("The reCAPTCHA wasn't entered correctly. Go back and try it again." .
         "(reCAPTCHA said: " . $resp->error . ")");

  } else {
            
           header('location: /danke');
           exit;
              
}

  if (!$resp->is_valid) {
    // What happens when the CAPTCHA was entered incorrectly
           header('location: /error-captcha');
           die ();

  } else {
            
           header('location: /danke');
           exit;
              
}

require_once('administrator/components/com_breezingforms/libraries/recaptcha/recaptchalib.php');
$privatekey = "XXxxxXXXXXxxxxXxxXx";

if ($_POST["recaptcha_response_field"]) {
    $resp = recaptcha_check_answer(
        $privatekey,
        $_SERVER["REMOTE_ADDR"],
        $_POST["recaptcha_challenge_field"],
        $_POST["recaptcha_response_field"]
    );

    if (!$resp->is_valid) {
        echo '<script type="text/javascript">
                  //location.go(-1);
                  alert("Error");
              </script>';
        exit;
    }
    else
    {
    echo '<script type="text/javascript">
                  alert("OK");
              </script>';
        exit;
    }
}